28824005

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*7^j.at n=31A038273
• Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*7^j.at n=32A038273
• a(n) = (6*7^n + (-7)^n)/7.at n=9A083224
• a(n) = 5*7^n.at n=8A193577
• Expansion of g.f. (1-2*x)/(1-7*x).at n=9A196661
• Smallest number with n prime divisors (counted with multiplicity) which is not divisible by a(k) for any k < n.at n=8A197082
• a(n) = n^7*(9*n+7)/2.at n=7A229150
• Number of ascending runs in {1,...,7}^n.at n=8A229281
• a(n) is the position of the first occurrence of n in A323077.at n=31A334198